DonutJan 11, 2017

Hi Borse, I've also upgraded to OxygenOS v4.0.1, and I've been using the same Bluetooth wireless earphones (Samsung HS3000) on OOS v3.5.4, v4.0, and v4.0.1 with no diminution in performance. When I switch on the Bluetooth wireless earphones controller, I hear "devices connected"; then when I play an audio output app (eg: CastBox, TuneIn Radio Pro, BBC iPlayer Radio), the audio comes through the Bluetooth wireless earphones, as expected.

So I'd suggest that the problem you've encountered isn't a general bug affecting all Bluetooth wireless earphones on OOS v4.0.1.

The only thing I could suggest (if you've not tried it already) is to unpair, and then pair all over again, your own Bluetooth wireless earphones, and see if that gets everything running smoothly again - here's hoping that'll fix it.

CupcakeJan 27, 2017

CupcakeJan 27, 2017

I also have trouble with bt-connection and car-radio. it dosen't work. I called today with the support. They told me, that after the next update these problems will be Ok. There are compatiblity-problems with car-radio and other devices.

CupcakeJan 29, 2017

Thank you for the response, we do apologize for the inconvenience this issue has caused you. Regarding your concern, the issue on your phone is now on the list for the ROM Developer's to update but as of now we cannot provide you the accurate time and date for this issue to be fixed via OTA